JP4572016B2 - Spinning reel rotation transmission device - Google Patents

Abstract

Oscillating mechanism rotation transmission device that maintains high linking-shaft mounting precision and attains a reel made lightweight overall. The spinning-reel rotation transmission device (14) transmits handle rotation the oscillating mechanism (6), and is provided with: a pinion gear (12); a linking shaft (36); a first bearing (28), a second bearing (29), a first gear (37), a second gear (38), and a third gear (39). The linking shaft is disposed along an axis offset from the pinion gear. The first bearing is detachably fixed to the reel unit and rotatively supports one end of the linking shaft. The second bearing is furnished in the reel unit and rotatively supports the other end of the linking shaft. The first gear is furnished on the linking shaft and meshes with the pinion gear. The second gear is furnished on the linking shaft at a spacing from the first gear. The third gear is linked to the reciprocative shifting mechanism and meshes with the second gear. <IMAGE>

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a rotation transmission device, and more particularly to a rotation transmission device for a spinning reel that transmits the rotation of a handle to a reciprocating mechanism that reciprocally moves a spool mounted on a reel body of the spinning reel back and forth.
[0002]
[Prior art]
  As a spinning reel oscillating mechanism (an example of a reciprocating mechanism), a traverse cam type is known. This oscillating mechanism has a screw shaft arranged in parallel with the spool shaft and a slider engaged with the screw shaft, and the spool shaft is mounted on the slider so as not to move in the axial direction. The rotation transmission device that transmits the rotation of the handle to the screw shaft has a pinion gear that meshes with a master gear that rotates in conjunction with the rotation of the handle, and an intermediate gear that meshes with the pinion gear. It is non-rotatably attached to one end.
[0003]
  In such a traverse cam type oscillating mechanism, the amount of movement of the spool per rotation of the rotor is determined by the lead angle of the screw shaft. For this reason, the space between fishing lines increases and it is difficult to wind a fishing line around a spool efficiently.
[0004]
  Japanese Patent Laid-Open No. 11-86 discloses an oscillating mechanism capable of tightly winding a fishing line around a spool by reducing the amount of forward / backward movement of the spool with respect to the rotation of the handle. The rotation transmission device for transmitting the rotation of the handle to the oscillating mechanism includes a pinion gear, a connecting shaft arranged along an axis that is different from the pinion gear so as to face the oscillating mechanism, and a pinion fixed to one end of the connecting shaft. A screw gear that meshes with the gear, a worm gear fixed to the other end of the connecting shaft, and a worm wheel that is non-rotatably mounted on the screw shaft and meshes with the worm gear. The connecting shaft is rotatably supported on the reel body on the opposite side across the spool shaft and the opening portion sealed by the lid of the reel body.
[0005]
[Problems to be solved by the invention]
  In the conventional close-winding rotation transmission device, since the connecting shaft is rotatably supported by the reel body, the connecting shaft of the connecting shaft is arranged inside a complicatedly shaped reel body that supports a plurality of other shafts. It is difficult to machine the interior so as to maintain high mounting accuracy. Unless the mounting accuracy of the connecting shaft is maintained high, the distance between the connecting shaft and the spool shaft, and between the connecting shaft and the screw shaft varies. When the distance between the shafts fluctuates, the meshing accuracy between the pinion gear and the screw gear and the meshing accuracy between the worm wheel and the worm gear are lowered, and the rotation transmission efficiency is lowered. In addition, if a support structure for the connecting shaft is provided inside the reel body, it is necessary to make a structure such as a rib and a boss for the inside of the reel body, which increases the weight of the reel body.
[0006]
  SUMMARY OF THE INVENTION An object of the present invention is to provide a rotation transmission device that transmits the rotation of a handle to a reciprocating movement mechanism via a connecting shaft so that the mounting accuracy of the connecting shaft can be maintained high and the weight of the entire reel can be reduced. .
[0007]
  In addition, since such a rotation transmission device is composed of a plurality of gears, maintenance is important when trying to maintain a high transmission efficiency. For maintenance, it is necessary to apply a lubricant such as grease to the gear. However, in the conventional configuration, since the connecting shaft is hidden behind the spool shaft, it is difficult to apply the lubricant to the gear even if the lid of the reel body is opened, and maintenance is difficult to perform.
[0008]
  Another object of the present invention is to facilitate maintenance of the rotation transmission device.
[0009]
[Means for Solving the Problems]
  A spinning reel rotation transmission device according to a first aspect of the present invention is a device for transmitting the rotation of a handle to a reciprocating mechanism for reciprocating a spool mounted on a reel body of a spinning reel back and forth, comprising a pinion gear, a connecting shaft, The first bearing portion, the second bearing portion, the first gear, the second gear, and the third gear are provided. The pinion gear is a gear to which the rotation of the handle is transmitted. The connecting shaft is an axis arranged along an axis that is different from the pinion gear so that the reciprocating mechanism and the pinion gear can be connected. The first bearing portion is detachably fixed to the reel body and rotatably supports one end of the connecting shaft. The second bearing portion is provided on the reel body and rotatably supports the other end of the connecting shaft. The first gear is a gear that is provided on the connecting shaft and meshes with the pinion gear. The second gear is a gear provided on the connecting shaft at a position different from that of the first gear. The third gear is a gear connected to the reciprocating mechanism and meshing with the second gear.
[0010]
  In this rotation transmission device, when the handle rotates, the pinion gear rotates accordingly. The rotation of the pinion gear is transmitted to the first gear meshing with the pinion gear, and the connecting shaft rotates. The connecting shaft is provided with a second gear in addition to the first gear. When the connecting shaft rotates, the second gear also rotates. When the second gear rotates, the third gear meshing with the second gear also rotates, and the reciprocating mechanism operates to reciprocate the spool back and forth. Here, one end of the connecting shaft is supported by a first bearing portion that is detachably fixed to the reel body, and the other end is supported by a second bearing portion provided on the reel body. Accordingly, it is only necessary to make the second bearing portion supporting the other end in the reel body, and it is not necessary to make the first bearing portion. For this reason, it is possible to easily manufacture a high-precision first bearing portion that requires only a small part, and only to make one bearing portion inside the reel body having a complicated shape, and it is easy to maintain the accuracy of the second bearing portion, High mounting accuracy of the connecting shaft can be maintained. In addition, since the first bearing portion has a simpler shape than that formed inside the reel body, the weight of the entire reel can be reduced.The first bearing portion includes a lid member that is detachably attached to the reel body, and a bearing that is attached to the lid member, and one end of the connecting shaft is rotatably supported by the bearing. Further, since the connecting shaft is supported by the bearing, the rotation efficiency is increased.
[0011]
  The spinning reel rotation transmission device according to a second aspect of the invention is the device according to the first aspect, wherein the pinion gear is a screw gear, and the first gear is a screw gear meshing with the pinion gear. In this case, the rotation is reliably transmitted from the pinion gear to the first gear even if the pinion gear and the first gear are arranged differently.
[0012]
  The spinning reel rotation transmission device according to a third aspect of the present invention is the device according to the first or second aspect, wherein the second gear is a worm gear and the third gear is a worm wheel. In this case, the rotation when transmitted from the second gear to the third gear can be greatly decelerated, and the forward / backward movement speed of the spool can be reliably reduced with respect to the rotation of the handle.
[0013]
  A spinning reel rotation transmission device according to a fourth aspect of the present invention is the device according to the first or second aspect, wherein the second gear is a screw gear, and the third gear is a screw gear meshing with the second gear. In this case, it is difficult to increase the reduction ratio, but the manufacturing becomes easier.
[0014]
  The spinning reel rotation transmission device according to a fifth aspect of the present invention is the device according to any one of the first to fourth aspects, wherein the connecting shaft is disposed obliquely with respect to the reel body. In this case, even if the connecting shaft is provided, the reel body can be made compact in a state in which the sizes in the horizontal (left and right) direction and the vertical (up and down) direction are maintained in a balanced manner.
[0015]
  The spinning reel rotation transmission device according to a sixth aspect of the present invention is the device according to any one of the first to fifth aspects, wherein the reciprocating mechanism engages with the rotation of a screw shaft arranged in parallel to the pinion gear to reciprocate the spool. This is a traverse cam type reciprocating mechanism to be moved, and the third gear is non-rotatably mounted on the screw shaft. In this case, a large reduction ratio can be obtained as compared with the case where the rotation of the pinion gear is directly transmitted to the screw shaft.
[0016]
  A spinning reel rotation transmission device according to a seventh aspect of the invention is the device according to any one of the first to sixth aspects, wherein the first bearing portion is formed behind the spinning reel rotor of the reel body and is larger than the outer diameter of the second gear. The second gear is disposed on one end side of the connecting shaft and has the same diameter as the first gear or a larger diameter than the first gear. In this case, the first bearing portion is mounted in a through hole formed at the rear of the rotor, and the second gear close to the first bearing portion has a diameter equal to or smaller than the first gear. The connecting shaft can be removed from the through hole together with both gears simply by removing it from the main body. For this reason, it is not necessary to remove the rotor or open the other part of the reel body to remove the spool shaft and the reciprocating mechanism parts, thereby facilitating maintenance of the rotation transmission device.
[0017]
  A spinning reel rotation transmission device according to an eighth aspect of the present invention is the device according to any one of the first to seventh aspects, wherein the rotational speed ratio between the pinion gear and the third gear is in the range of 4: 1 to 24: 1. In this case, since the reciprocating mechanism side is decelerated compared to the conventional case, the fishing line can be tightly wound around the spool.The
[0018]
[DETAILED DESCRIPTION OF THE INVENTION
  [Overall configuration and reel body configuration]
  In FIG. 1, a spinning reel adopting an embodiment of the present invention includes a handle 1, a reel body 2 that rotatably supports the handle 1, a rotor 3, and a spool 4. The rotor 3 is rotatably supported at the front portion of the reel body 2. The spool 4 winds the fishing line around the outer peripheral surface, and is disposed at the front portion of the rotor 3 so as to be movable back and forth.
[0019]
  The reel body 2 includes a reel body 2a having an opening 2c on a side portion, a T-shaped hook mounting leg 2b extending integrally from the reel body 2a obliquely upward and forward, and a lid for closing the opening 2c of the reel body 2a. And a body 2d.
[0020]
  As shown in FIGS. 2 and 3, the reel body 2 a has a space therein, and in that space, a rotor drive mechanism 5 that rotates the rotor 3 in conjunction with the rotation of the handle 1, and a spool There is provided an oscillating mechanism 6 for moving the fishing line 4 back and forth to wind up the fishing line uniformly.
[0021]
  As shown in FIG. 2, a cylindrical boss portion 17a is formed on the right side surface of the reel body 2a in FIG. The boss portion 17a is formed to protrude inward of the reel body 2a in order to accommodate a bearing 16a that supports the right end of FIG. 2 of the handle shaft 10 (described later). A boss portion 17b is formed at a position facing the boss portion 17a of the lid 2d. The boss portion 17b is formed to project outward from the reel body 2a in order to accommodate the bearing 16b that supports the left end of the handle shaft 10 in FIG. The boss portion (the boss portion 17 a in FIG. 2) opposite to the side on which the handle 1 is mounted is closed by the shaft cover 19. The boss portion (the boss portion 17b in FIG. 2) on which the handle 1 is mounted is prevented from entering water by a perforated cover 19b. The shaft cover 19 and the perforated cover 19b are elliptical members, and are each attached to the boss portion with two screws. The boss portion 17a not projecting outward is formed with an elliptical recess 18a for mounting the shaft cover 19 and the perforated cover 19b flush with each other.
[0022]
  In front of the boss portion 17a of the reel body 2a, as shown in FIG. 3, a bulging portion 2e for accommodating a rotation transmission mechanism (FIG. 3) 14 to be described later is formed. The bulging portion 2e is formed obliquely so as to gradually protrude downward in FIG. 2, and a first bearing portion 28 constituting the rotation transmission mechanism 14 is detachably attached to the lower end of the bulging portion 2e. It is attached to. A second bearing portion 29 that protrudes inward of the reel body 2a is formed on the base end side of the bulging portion 2e.
[0023]
  As shown in FIGS. 1 and 2, the rotor drive mechanism 5 includes a handle shaft 10 on which the handle 1 is non-rotatably mounted, a face gear 11 that rotates together with the handle shaft 10, and a pinion gear 12 that meshes with the face gear 11. And have. Both ends of the handle shaft 10 are rotatably supported by the reel body 2a via bearings 16a and 16b. The right end in FIG. 2 of the handle shaft 10 is located inside the outer surface of the bearing 16a. A through hole having a rectangular cross section is formed at the center of the handle shaft 10, and the handle 1 is inserted into the through hole so as not to rotate. A screw hole is formed in the distal end surface of the handle 1, and the handle 1 is attached to the handle shaft 10 by an attachment screw 20 screwed into the screw.
[0024]
  [Configuration of Oscillating Mechanism]
  The oscillating mechanism 6 is a mechanism for moving the spool 4 in the same direction by moving the spool shaft 15 fixed to the center of the spool 4 in the front-rear direction in conjunction with the rotor 3. The rotation of the handle 1 is transmitted to the oscillating mechanism 6 via the rotation transmission mechanism 14.
[0025]
  As shown in FIGS. 1, 2, and 4, the oscillating mechanism 6 includes a screw shaft 21 disposed below the spool shaft 15, a slider 22 that moves in the front-rear direction along the screw shaft 21, and a slider 22. There are two guide shafts 24a, 24b for guiding. The screw shaft 21 is disposed in parallel with the spool shaft 15 and is rotatably supported by the reel body 2a. A spiral intersecting groove 21 a is formed on the outer peripheral portion of the screw shaft 21. The lead angle θ of the groove 21a is set to 20 to 45 °. The lead angle θ of the spiral groove 21a is defined as follows: D is the bottom diameter of the groove 21a, and L is the length in the axial direction that is advanced by one rotation of the screw shaft 21, that is, L.
  Lead angle θ = arc cot (πD / L)
It is an angle represented by If the lead angle θ is smaller than 20 °, the thickness between the grooves becomes thin and the number of intersecting portions of the grooves increases, which is not preferable. On the other hand, if it exceeds 45 °, the conversion efficiency from the rotational motion to the linear motion is lowered, which is not preferable.
[0026]
  The slider 22 has a slider body 25 and an engaging member 26 housed in the slider body 25. The slider body 25 is guided in parallel with the spool shaft 15 by the guide shafts 24a and 24b. The engaging member 26 is rotatably mounted in the slider body 25, and the tip of the engaging member 26 is engaged with the groove 21 a of the screw shaft 21.
[0027]
  As shown in FIGS. 3 and 4, the rotation transmission mechanism 14 is housed inside the bulging portion 2 e, and rotatably supports the pinion gear 12, the connection shaft 36, and the lower end of the connection shaft 36. The first bearing portion 28, the second bearing portion 29 that rotatably supports the upper end of the connecting shaft 36, and first to third gears 37 to 39 are provided. The pinion gear 12 constitutes the rotor drive mechanism 5 and also constitutes the rotation transmission mechanism 14. The pinion gear 12 has a gear portion 12 b formed of a screw gear at the rear portion, and the gear portion 12 b meshes with the face gear 11.
[0028]
  The connecting shaft 36 is a shaft that is obliquely disposed along an axis that is different from the pinion gear 12 so as to be connectable to the screw shaft 21, and is disposed inside the bulging portion 2 e. Specifically, the connecting shaft 36 is inclined with respect to the plane intersecting the handle shaft 10 such that the crossing angle of the pinion gear 12 and the screw shaft 21 is 90 degrees, that is, with respect to the reel body 2. It is disposed obliquely with respect to the horizontal (left and right) direction and the vertical (up and down) direction. By disposing the connecting shaft 36 in this manner, the reel body 2 can be made compact in a state where the horizontal and vertical sizes are maintained in a balanced manner even when the connecting shaft 36 is provided.
[0029]
  As described above, the first bearing portion 28 is detachably mounted on the lower surface of the bulging portion 2e formed in the reel body 2a, and is fixed by screws. As described above, the second bearing portion 29 is formed so as to protrude from the base end portion of the bulging portion 2e toward the inside of the reel body 2a. The first and second bearing portions 28 and 29 have bearings 28 a and 29 a for rotatably supporting the connecting shaft 36, respectively.
[0030]
  The first gear 37 is a screw gear that meshes with the gear portion 12 b of the pinion gear 12 on the surface opposite to the meshing position of the face gear 11, and is fixed to the connecting shaft 36 so as not to rotate. The second gear 38 is a worm gear, and is provided on the connecting shaft 36 at a distance from the first gear 37. The second gear 38 is formed integrally with the connecting shaft 36. The third gear 39 is a worm wheel that meshes with the second gear 38, and is fixed to the front end of the screw shaft 21 so as not to rotate.
[0031]
  The reduction ratio of the rotation transmission mechanism 14 (ratio of the rotation of the screw shaft 21 to the rotation of the pinion gear 12) NC is set so that the movement amount RM of the spool 4 per rotation of the rotor 3 is the same as the yarn diameter DL. ing. That is, the movement amount R M of the spool 4 is set so that the fishing line is wound around the spool 4 while being shifted by the fishing line diameter DL with respect to one rotation of the rotor 3. Here, when the above-described lead (the amount of movement per one rotation of the screw shaft 21) is L and the diameter of the fishing line is DL, the fishing line is spooled while being shifted by the fishing line diameter DL with respect to one rotation of the rotor 3. , The reduction ratio NC, which is the ratio of the rotational speed of the screw shaft 21 to one rotation of the rotor 3, is NC = DL / L.
[0032]
  For example, if the yarn diameter DL is 0.2 mm (No. 1.5) and the lead L is 3.6 mm, the reduction ratio NC is NC = 0.2 / 3.6 = 1/18. That is, if the reduction ratio NC from the rotor 3 to the screw shaft 21 is set to 1/18, the spool 4 moves by 0.2 mm for each rotation of the rotor 3, and the fishing line is tightly wound around the spool 4. In such a case, for example, if the speed is reduced to 1/2 between the gear portion 12b and the first gear 37 and the speed is reduced to 1/9 between the second gear 38 and the third gear 39, the whole 5 can be set to 1/18. As shown in FIG. 5, the fishing line is wound around the spool 4 by shifting the diameter of the fishing line by the diameter DL with respect to one rotation of the rotor 3, and the fishing line is tightly wound around the spool 4. . Since the lead angle of the groove 21a of the screw shaft 21 is smaller than that of the other part in order to change the traveling direction at the end, the lead L of the screw shaft 21 becomes smaller in that part, and the above-mentioned movement amount R M is also small. Become.
[0033]
  If the rotational speed of the screw shaft 21 required to reciprocate the spool 4 once is CN, this numerical value must be an integer, but the corresponding rotational speed of the rotor 3 is an integer (that is, the rotational phase). 2nπ), the point where the lower fishing line and the upper fishing line cross each other always appears in the same phase, so that the pincushion shape of the cross section perpendicular to the spool shaft core is projected in two directions like an ellipse. End up. This is the same even if the rotational phase is (2n + 1) π, and if it is (2n + 1/2) π, the cross section is close to a quadrangle. In order to approximate a polygon close to a circle, the rotational phase may be set to 2nπ + ι so that it is not divisible by 2nπ when ι is an integral multiple. However, if ι is too small, the projecting portions are continuously generated close to each other, so that the pincushion shape becomes spiral.
[0034]
  For example, if it demonstrates along said example, if the rotation speed of the screw shaft 21 required for making the spool 4 reciprocate once is set to 10, the rotation speed of the rotor 3 corresponding to this will be 180. However, by changing the lead L from 3.6 to 3.666 mm, the reduction ratio NC becomes 200/3666, and the rotational speed of the rotor 3 can be made 183.3. As a result, the pincushion shape of the cross section perpendicular to the spool shaft core can be made a polygonal shape close to a circle.
[0035]
  [Configuration of rotor]
  As shown in FIG. 1, the rotor 3 includes a cylindrical portion 30 and first and second rotor arms 31 and 32 provided on the side of the cylindrical portion 30 so as to face each other. The cylindrical portion 30 and the rotor arms 31 and 32 are integrally formed.
[0036]
  A front wall 33 is formed at the front of the cylindrical portion 30, and a boss 33 a is formed at the center of the front wall 33. The front portion 12a of the pinion gear 12 and the spool shaft 15 pass through the through hole of the boss 33a. A nut 34 is disposed on the front side of the front wall 33, and this nut 34 is screwed into a screw portion at the tip of the pinion gear 12. A bearing 35 for rotatably supporting the nut 34 with respect to the spool shaft 15 is disposed on the inner peripheral portion of the nut 34.
[0037]
  A bail arm 44 is attached to the tips of the first and second rotor arms 31 and 32 so as to be swingable between a yarn winding posture and a yarn releasing posture. As shown in FIGS. 1 and 3, the bail arm 44 includes first and second bail support members 40 and 42 that are swingably mounted on the inner sides of the ends of the first and second rotor arms 31 and 32, respectively. A fixed shaft cover 47 including a fixed shaft whose base end is fixed to the distal end of the first bail support member 40, a line roller 41 for guiding the fishing line to the spool 4, a fixed shaft cover 47, and a second bail support member 42 And a bail 43 connecting the two. As shown in FIG. 1, the first bail support member 40 is swingably attached to the outer end of the first rotor arm 31. The second bail support member 42 is swingably attached to the inside of the distal end of the second rotor arm 32.
[0038]
  The line roller 41 is rotatably supported by a fixed shaft via a bearing (not shown). The line roller 41 is a drum-shaped member in which two tapered surfaces are formed on the circumferential surface so that the central portion in the axial direction has a small diameter. A circumferential groove 41a in the circumferential direction is formed in the small diameter portion. The groove width of the circumferential groove 41a is 2 mm or less, and desirably a value of twice or less the yarn diameter. By reducing the groove width of the circumferential groove 41a in this way, the fishing line is less likely to be displaced in the axial direction of the spool 4, and when the moving speed of the spool 4 is reduced, the fishing line is wound around the spool 4 with high accuracy.
[0039]
  A reverse rotation prevention mechanism 50 for the rotor 3 is disposed inside the cylindrical portion 30 of the rotor 3. The reverse rotation prevention mechanism 50 includes a roller-type one-way clutch 51 and an operation mechanism 52 that switches the one-way clutch 51 between an operating state and an inoperative state. In the one-way clutch 51, the outer ring is fixed to the reel body 2a, and the inner ring is non-rotatably mounted on the pinion gear 12. The operation mechanism 52 has an operation lever 53 disposed at the rear part of the reel body 2a. By swinging the operation lever 53, the one-way clutch is switched to two states, and the rotor 3 is in an operating state. Becomes incapable of reverse rotation, and the rotor 3 can be reversely rotated when not in operation.
[0040]
  [Spool configuration]
  The spool 4 is disposed between the first rotor arm 31 and the second rotor arm 32 of the rotor 3 and is fixed to the tip of the spool shaft 15 via a drag mechanism 60. The spool 4 includes a bobbin trunk 4a around which the fishing line is wound, a skirt 4b formed integrally with the rear part of the bobbin trunk 4a, and a front flange 4c fixed to the front of the bobbin trunk 4a. Have. The bobbin trunk 4 a is a cylindrical member that extends to the outer peripheral side of the cylindrical portion 30 of the rotor 3. Further, the skirt portion and the front flange portions 4b, 4c are extended radially outward from both ends of the bobbin trunk portion 4a. As a result, when the fishing line is wound around the bobbin trunk 4a of the spool 4, the number of turns of the fishing line at each bobbin stage is substantially equal.
[0041]
  [Reel operation and operation]
  In this spinning reel, the bail arm 44 is tilted from the yarn winding posture to the yarn releasing posture during casting. As a result, the first and second bail support members 40 and 42 swing in the same direction.
[0042]
  At the time of fishing line winding, the bail arm 44 is brought down to the line winding position. This is automatically performed by the action of a cam and a spring (not shown) when the handle 1 is rotated in the yarn winding direction. When the handle 1 is rotated in the yarn winding direction, this rotational force is transmitted to the pinion gear 12 via the handle shaft 10 and the face gear 11. The rotational force transmitted to the pinion gear 12 is transmitted to the rotor 3 via the front part 12a of the pinion gear 12, and the rotor 3 rotates in the yarn winding direction.
[0043]
  On the other hand, the connecting shaft 36 is rotated by the first gear 37 meshing with the pinion gear 12, the third gear 39 is rotated via the second gear 38, and the screw shaft 21 is decelerated and rotated at the reduction ratio NC described above. As a result, the slider 22 engaged with the groove 21a of the screw shaft 21 is guided by the guide shafts 24a and 24b and moves in the front-rear direction. The amount of movement RM of the spool 4 at this time corresponds to the yarn diameter DL as described above. Then, the spool shaft 15 and the spool 4 reciprocate in the front-rear direction, and the fishing line guided to the spool 4 by the bail 43 and the line roller 41 has a line diameter DL for one rotation of the rotor 3 as shown in FIG. They are shifted one by one and wound around the spool body 4 a of the spool 4, and the fishing line is tightly wound around the spool 4. For this reason, the fishing line is efficiently wound around the spool 4.
[0044]
  [Other Embodiments]
  (A) The form of the spinning reel is not limited to the above-described embodiment. The spinning reel has no drag mechanism, has a rear part, or has a brake mechanism having a brake lever instead of a reverse rotation prevention mechanism. The present invention can also be applied.
[0045]
  (B) The form of the first to third gears is not limited to the above-described embodiment, and various forms of gears such as a screw gear, a bevel gear, and a face gear can be applied. The use of a screw gear reduces the reduction ratio than the worm, but makes it easier to manufacture. If a screw gear is used, the diameter of the first gear 37 can be made smaller than the diameter of the second gear 38. Thereby, maintainability can be improved.
[0046]
  6 and 7, in this embodiment, the first gear 37, the second gear 38, and the third gear 38 constituting the rotation transmission mechanism 14 are all screw gears. Since other configurations are substantially the same as those of the above-described embodiment, description thereof is omitted.
[0047]
  The reduction ratio NC of the rotation transmission mechanism 14 is approximately 1/5, for example. The range of the reduction ratio NC is preferably in the range of 1/4 to 1/24. When the reduction ratio NC is less than 1/4, the moving speed of the spool 4 is increased and the effect of tight winding around the spool 4 cannot be obtained sufficiently. Further, if it exceeds 1/24, the moving speed of the spool 4 becomes too slow, and even a thin fishing line may be wound twice by one rotation of the rotor 3.
[0048]
  Here, the second gear 38 has a smaller outer diameter than the first gear 37. Further, the pitch cylindrical twist angle (hereinafter referred to as the twist angle) of the pinion gear 12 is set to 55 degrees, for example, and the twist angle of the first gear 37 is set to 35 degrees. For example, the twist angle of the second gear 38 is set to 77.5 degrees, and the twist angle of the second gear 38 is set to 13.5 degrees. Thus, since the torsion angles of the pinion gear 12 and the second gear 38 are made larger than those of the first gear 37 and the third gear 39, the reduction ratio can be increased with respect to the change in the outer diameter. FIG. 7 schematically shows the gears 12, 37 to 39, and does not accurately show the twist angle and the number of teeth.
[0049]
  The first bearing portion 28 includes a lid member 28b that is detachably attached to the reel body 2a, and a ball bearing 28a that is attached to the lid member 28b. The lid member 28b is detachably attached to the reel body 2a behind the flange portion 2g formed at the front portion of the reel body 2a so as to be covered with the rear end portion of the cylindrical portion 30 of the rotor 3. In the mounting portion of the lid member 28b, a through hole 2f having an inner peripheral surface larger in diameter than the outermost diameter of the second gear 38 is formed in the bottom of the reel body 2a. The lid member 28b is fitted into the through hole 2f. The lid member 28b is fixed to the reel body 2a with screws 23.
[0050]
  In such a configuration, the outer diameter of the second gear 38 is larger than the outer diameter of the first gear 37, and the through hole 2f having a larger diameter than the outer diameter of the second gear 38 is formed in the lid member 28b mounting portion. Therefore, when the lid member 28 b is opened, the two gears 37 and 38 can be taken out together with the connecting shaft 36. Therefore, it is not necessary to disassemble the spool shaft 15 and the oscillating mechanism 6 when performing an operation of applying grease or the like to the gears 37 and 38 during maintenance. Therefore, the maintenance work of the rotation transmission mechanism 14 can be easily performed.
[0051]
  (C) Although the traverse cam type oscillating mechanism having a screw shaft is illustrated in the above embodiment, the present invention is also applied to a deceleration cam type oscillating mechanism that converts the rotation of the handle into a reciprocating motion by the rotating cam mechanism. it can.
[0052]
【The invention's effect】
  According to the present invention, one end of the connecting shaft is supported by the first bearing portion that is detachably fixed to the reel body, and the other end is supported by the second bearing portion provided on the reel body. Therefore, only the second bearing portion supporting the other end needs to be made in the reel body, and the first bearing portion does not need to be made. For this reason, it is possible to easily manufacture a high-precision first bearing portion that requires only a small part, and only to make one bearing portion inside the reel body having a complicated shape, and it is easy to maintain the accuracy of the second bearing portion, High mounting accuracy of the connecting shaft can be maintained. In addition, since the first bearing portion has a simpler shape than that formed inside the reel body, the weight of the entire reel can be reduced.
[0053]
  According to another invention, the first bearing portion is mounted in a through hole formed at the rear of the rotor, and the second gear close to the first bearing portion has a diameter equal to or smaller than the first gear. The connecting shaft can be removed from the through-hole together with both gears simply by removing from the reel body. This eliminates the need to remove the rotor or open other portions of the reel body to remove the spool shaft and the reciprocating mechanism parts, thereby facilitating maintenance of the rotation transmission device.
[Brief description of the drawings]
FIG. 1 is a left side cross-sectional view of a spinning reel adopting an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
3 is a sectional view taken along line III-III in FIG.
FIG. 4 is a perspective view of a rotation transmission mechanism.
FIG. 5 is a schematic cross-sectional view of a spool.
FIG. 6 is a view corresponding to FIG. 3 of another embodiment.
FIG. 7 is a view corresponding to FIG. 4 of another embodiment.
[Explanation of symbols]
    2 Reel body
    2a reel body
    2e bulge
    2f Through hole
    2g flange part
    3 Rotor
    4 Spool
    6 Oscillating mechanism
  12 pinion gear
  14 Rotation transmission mechanism
  28 1st bearing part
  28a Bearing
  28b Lid member
  29 Second bearing
  36 Connecting shaft
  37 1st gear
  38 Second gear
  39 3rd gear

Claims (8)

A spinning reel rotation transmission device that transmits the rotation of a handle to a reciprocating mechanism that reciprocates a spool mounted on a reel body of a spinning reel back and forth,
A pinion gear to which the rotation of the handle is transmitted;
A connecting shaft disposed along an axis that is different from the pinion gear so that the reciprocating mechanism and the pinion gear can be connected;
A first bearing portion that is detachably fixed to the reel body and rotatably supports one end of the connecting shaft;
A second bearing portion provided on the reel body and rotatably supporting the other end of the connecting shaft;
A first gear provided on the connecting shaft and meshing with the pinion gear;
A second gear provided on the connecting shaft at a position different from the first gear;
A third gear coupled to the reciprocating mechanism and meshing with the second gear ;
The first bearing portion includes a lid member that is detachably attached to the reel body, and a bearing that is attached to the lid member, and one end of the coupling shaft is rotatably supported by the bearing. Spinning reel rotation transmission device. The pinion gear is a screw gear,
The spinning reel rotation transmission device according to claim 1, wherein the first gear is a screw gear that meshes with the pinion gear. The second gear is a worm gear;
The spinning reel rotation transmission device according to claim 1, wherein the third gear is a worm wheel. The second gear is a screw gear;
The spinning reel rotation transmission device according to claim 1, wherein the third gear is a screw gear that meshes with the second gear.   5. The spinning reel rotation transmission device according to claim 1, wherein the connecting shaft is disposed obliquely with respect to the reel body. 6. The reciprocating mechanism is a traverse cam type reciprocating mechanism that reciprocates the spool by engaging the rotation of a screw shaft arranged in parallel with the pinion gear,
The spinning reel rotation transmission device according to any one of claims 1 to 5, wherein the third gear is non-rotatably attached to the screw shaft. The first bearing portion is attached to a through hole formed at a rear side of the spinning reel rotor of the reel body and having an inner diameter larger than an outer diameter of the second gear;
The rotation transmission of the spinning reel according to any one of claims 1 to 6, wherein the second gear is disposed on one end side of the connecting shaft and has the same diameter as the first gear or a larger diameter than the first gear. apparatus.   The rotation transmission device for a spinning reel according to any one of claims 1 to 7, wherein a rotation speed ratio between the pinion gear and the third gear is in a range of 4: 1 to 24: 1.

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